.app{
	width: 100%;
	height: 100vh;
	background-color: #ffffff;
	position: relative;
	display: flex;
	justify-content: center;
	align-items: center;
}
label{
	position: relative;
}
input{
	width: 38px;
	height: 38px;
	line-height: 38px;
	outline-style: none;
	font-size: 16px;
	color: #333;
	border: 3px solid #a8a8a8;
	border-radius: 19px;
	padding: 0 16px;
	box-sizing: border-box;
	transition: all 1s ease-in-out;
}
.line{
	width: 3px;
	height: 14px;
	display: block;
	background-color: #a8a8a8;
	transform: rotate(320deg);
	position: absolute;
	left: 30px;
	top: 32px;
	z-index: 10;
	opacity: 1;
	transition: all 1s ease-in-out;
}
input:focus,input:valid{
	width: 180px;
}
input:focus+.line,input:valid+.line{
	width: 1px;
	height: 16px;
	left: 19px;
	top: 10px;
	opacity: 0;
	transform: rotate(360deg);
}